<script lang="ts" setup>
import { ref, onUnmounted } from 'vue'
import { mobileRules, passwordRules, codeRules } from '@/utils/rules'
import { showSuccessToast, showToast, type FormInstance } from 'vant'
import { loginByPassword, sendMobileCode, loginByMobile } from '@/services/user'
import { useUserStore } from '@/stores'
import { useRoute, useRouter } from 'vue-router'

const agree = ref(false)
// 表单数据
const mobile = ref('')
const password = ref('')
const show = ref(false)
const store = useUserStore()
const router = useRouter()
const route = useRoute() // 路由信息对象
// const code = ref('')
// 表单提交
// 同时支持 密码登录 和  短信登录
const login = async () => {
  if (!agree.value) return showToast('请勾选用户协议')
  // 验证完毕，进行登录
  const res = isPass.value
    ? await loginByPassword(mobile.value, password.value)
    : await loginByMobile(mobile.value, code.value)
  store.setUser(res.data)
  // 如果有回跳地址就进行回跳，没有跳转到个人中心
  router.push((route.query.returnUrl as string) || '/user')
  showSuccessToast('登录成功')
}
// 界面的切换短信登录 添加短信输入框校验
const isPass = ref(true)
const code = ref('')
// 发送短信验证码
// 1.API接口调用函数
// 2.发送短信验证码：判断是否正在倒计时 校验输入框 调用短信接口
// 3. 接口成功 倒计时 组件销毁要清理定时器
const time = ref(0)
const form = ref<FormInstance | null>(null)
let timeId: number

const send = async () => {
  // 判断是否倒计时
  if (time.value > 0) return
  // 验证表单，支持传入一个或多个 name 来验证单个或部分表单项，不传入 name 时，会验证所有表单项
  // 验证不通过报错，阻止程序继续执行
  await form.value?.validate('mobile')
  // 校验成功之后 调接口发验证码
  await sendMobileCode(mobile.value, 'login')
  showSuccessToast('发送成功')
  time.value = 60
  // 开启倒计时
  if (timeId) clearInterval(timeId)
  timeId = setInterval(() => {
    time.value--
    if (time.value <= 0) window.clearInterval(timeId)
  }, 1000)
  // 组件销毁
  onUnmounted(() => {
    window.clearInterval(timeId)
  })
}
</script>

<template>
  <div class="login-page">
    <cp-nav-bar
      right-text="注册"
      @click-right="$router.push('/register')"
    ></cp-nav-bar>
    <!-- 头部 -->
    <div class="login-head">
      <h3>{{ isPass ? '密码登录' : '短信验证码登录' }}</h3>
      <a href="javascript:;" @click="isPass = !isPass">
        <span>短信验证码登录</span>
        <van-icon name="arrow"></van-icon>
      </a>
    </div>

    <!-- 表单 -->
    <van-form autocomplete="off" @submit="login" ref="form">
      <van-field
        name="mobile"
        v-model="mobile"
        :rules="mobileRules"
        type="text"
        placeholder="请输入手机号"
      ></van-field>

      <van-field
        v-if="isPass"
        v-model="password"
        :rules="passwordRules"
        :type="show ? 'text' : 'password'"
        placeholder="请输入密码"
      >
        <template #button>
          <cp-icon
            @click="show = !show"
            :name="`login-eye-${show ? 'on' : 'off'}`"
          ></cp-icon>
        </template>
      </van-field>
      <van-field
        v-else
        v-model="code"
        :rules="codeRules"
        placeholder="短信验证码"
      >
        <template #button>
          <span class="btn-send" :class="{ active: time > 0 }" @click="send">{{
            time > 0 ? `${time}s秒后再次发送` : '发送验证码'
          }}</span>
        </template>
      </van-field>
      <div class="cp-cell">
        <van-checkbox v-model="agree">
          <span>我已同意</span>
          <a href="javascript:;">用户协议</a>
          <span>及</span>
          <a href="javascript:;">隐私条款</a>
        </van-checkbox>
      </div>
      <div class="cp-cell">
        <van-button block round type="primary" native-type="submit"
          >登 录</van-button
        >
      </div>
      <div class="cp-cell">
        <a href="javascript:;">忘记密码？</a>
      </div>
      <!-- <svg aria-hidden="true"> -->
      <!-- #icon-文件夹名称-图片名称 -->
      <!-- <use href="#icon-login-eye-off" /> -->
      <!-- </svg> -->
    </van-form>

    <!-- 底部 -->
    <div class="login-other">
      <van-divider>第三方登录</van-divider>
      <div class="icon">
        <!-- <img src="@/assets/qq.svg" alt="" /> -->
      </div>
    </div>
  </div>
</template>

<style scoped lang="scss">
.login {
  &-page {
    padding-top: 46px;
  }

  &-head {
    display: flex;
    padding: 30px 30px 50px;
    justify-content: space-between;
    align-items: flex-end;
    line-height: 1;

    h3 {
      font-weight: normal;
      font-size: 24px;
    }

    a {
      font-size: 15px;
    }
  }

  &-other {
    margin-top: 60px;
    padding: 0 30px;

    .icon {
      display: flex;
      justify-content: center;

      img {
        width: 36px;
        height: 36px;
        padding: 4px;
      }
    }
  }
}

.van-form {
  padding: 0 14px;

  .cp-cell {
    height: 52px;
    line-height: 24px;
    padding: 14px 16px;
    box-sizing: border-box;
    display: flex;
    align-items: center;

    .van-checkbox {
      a {
        color: var(--cp-primary);
        padding: 0 5px;
      }
    }
  }

  .btn-send {
    color: var(--cp-primary);

    &.active {
      color: rgba(22, 194, 163, 0.5);
    }
  }
}
</style>
